Hi Pd-List
I haven't been on this list for almost a year and have a patch laying around that I wanted to share.
Pd-Dom provides simple methods to create, chain and remove abstractions dynamically.
http://github.com/eerne/Pd-Dom
The 3 most important messages are "add", "set" and "remove", for the rest it is still a beta and subject to slightly change.
some of the examples aren't working atm. check out pd-dom-help.pd and examples/04.gui2.pd
Let me know if there is already a similar project. (since i haven't followed the list, sorry!)
Cheers eni